Dad's Army's Arnold Ridley on the Somme in 1916

In this episode we look at the the experience of one of our national treasures during the summer of 1916. Arnold Ridley played Private Godfrey in Dad's Army for 9 years and 80 episodes. But he was wounded 3 times on the Somme in 1916.Why did he join up? What happened to him on the Somme? How did it affect him for the rest of his life? How did it affect his family? And how Dad's Army changed his life.